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LE. CRISP. Tools for Boot Treeing Machines.

Patented-July 27,1880.

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J. E. CRISP. Tools for'BootvTre eing Machines. No; 230,406. Patented July 27,1880.

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J. BJORISP. Tools'for Boot Treeing Machine's. I No. 230,406. Patented July 27,1880.

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JOSEPH E. CRISP, F BOSTON, MASS,

PATENT @EEICE.

ASSIGNOR TO THE COPELAND BOOT TREEING MACHINE COMPANY, OF HARTFORD, CONN.

TOOL' FOR BOOT-TREEING MACHINES.

SPECIFICATION forming part of Letters Patent No. 230,406, dated July 27, 1880.

Application filed February 14, 1880. 7

To all whom it may concern: 4

Be it known that I, JOSEPH E. CRISP, of Boston, in the county of Suffolk and Commonwealth of Massachusetts, have invented an Improvement in Tools for Boot-Treeing Machines, &c., of which the following is a specification.

This invention embraces an improvement upon the smoothing and finishing tool described to in my reissued Letters Patent No. 9,055, dated January 20, 1880. It embraces additional means for heating the tree or tool and the boot upon the tree exteriorly during the treeing operation, and automatic means for ap- 1 plying the filling or dressing composition during the treeing operation and for distributing it evenly upon the surface of the boot.

Reference is made to the accompanying drawings, forming a part of this specification, in explaining the nature of this invention, in

which Figure 1 represents an elevation of the improved tool and heating attachment. Fig. 2 is a vertical section on the line 00 w of Fig. 3. Fig. 2) is a cross-section. Fig. at is a'verticat section on the line 3 3 ofFig. 1. Fig. 5 is a" view representing, in perspective, a portion of the boot-treeing machine, two tools, and their holding devices. Fig. 6 is a perspective of the tool, representing its conformability to the varying curvatures of theball and instep surface of the boot. Fig. 7 is an end elevation of the tool, showing the automatic composition feeding and spreading apparatus. Fig.- -8 is a vertical section thereof, and Fig. 9 a

plan.

In the patented machine there is described a conformable smoothing and finishing tool. or device, consisting of two rolls arranged to revolve freely upon a short shaft, which is pivoted at its longitudinal center to a holding or supporting rod or arm.

In this invention the arm or holding-rod supports and presents to the boot-tree alarger number of rolls, and the rolls are so hung and balanced in relation to each other and to the arm that each roll at all times bears upon the boot on the boot-tree with equal force. A represents the holding or supporting rod or arm. It is provided with means whereby the even pressure of the tool on the boot upon the boot-tree is maintained, as described in my said patent, and it may project from its cylinder or supporting block a in a direction at right angle to the axis of the tree, oritinay be somewhat inclined in relation to said axis, as shown at a, Fig. 5. It has pivoted at its end a short shaft, b, the shaft projecting in either direction from the pivot an equal distance. This shaft has arranged upon either sine of the pivot a collar, b, which is free to .swivel to alimited extentsay a third of a revolution--on-the shaft, and which is provided with two arms, b These arms project-radially from points on each collar about one-third of a circumference apart and are of equal length, and t-hey each support a block, 0 which is allowed to swivel freely on'the arm and which is provided with the short shafts 0 that furnish the bearings for the rolls B. There are, 0 therefore, four sets of bearings for providing the rolls with the adjustments necessary for obtaining theconformability and evenness of working pressure desired: tirst, the bearings of the rolls on their supporting-shafts, one on either side of the arm [1 second, the bearings of the blocks I) on said arm b third, the bearings of the collars 1) upon the shaft 1), and, fourth, the bearing of the shaft 1) on the end of the arm A. I

It will be observed that each of these bearings, excepting the first named, is arranged in such away that it occurs midway between each pair of rolls, between each pair of blocks supporting the roll-shafts, or between the collars on the shaft 1); that by this arrangement one roll balances another, one pair anotherpair, and a set of two pairs a second set of the same number; that each set of two rolls has conformability distinct from that of the other sets; c. that each set of four rolls has a conformable movement that is separate from that of the other four rolls of the tool, and that each roll bears upon the work with a pressure equal to that of each of theother rolls in the series. 5

The rolls B may have a spherical or partly spherical surface, or they may have a flat surface, as desired.

In lieu of rolls, any smoothing, rubbing, or finishing devices maybe employedin the tool, [00 providing they have the relation to each other herein described.

For the purpose of heating the boot upon the boot-tree and the boot-tree or the tool, 1

attach the gas-pipe O to the short shaft b between the rolls, and provide it with perforations or burners so arranged as to throw' perforated pipe may be used for applying heat to the boot-tree or tool.

For automatically applying the filling or finishing composition I arrangeabrush, D, or a suitable equivalent, such sponge or a spraying device, between the rolls, and fasten it to a perforated pipe, (I, for feeding it with the composition, the perforations opening at intervals upon the back of the brush, and allowing the composition to feed through it to the boot. The brush may be used merely for the purpose of evenly distributing composition applied by hand, and it may also be used, in addition to the rolls, as a smoothing and finishing device.

The lower roll of each pair of rolls used upon the leg portion of the boot may be weighted in order that each pair may automatically as sume a vertical position. The rolls for operating upon the foot portion of the bootI prefer to have shaped substantially as shown in Figs. 1 and 2, and I prefer, also, that they be secured to the shafts by washers having a rounded surface in continuation of the rounded surface of the roll, and that the nut for fastening the washer and roll to the shaft be not projected above the surface of the washer, as, with this construction, ifa pair ofrolls is displaced so that the end of the roll bears upon the work, upon the movementiof the-tool it will automatically assume its proper position in relation to the surface of the work-that is, a position in which the roll-supportin g shaft is parallel with the surface of the work.

I also may provide the post E, which supports the cylinder or block holding the arm A, with a movement in relation to the boottree whereby the inclination of the arm A may be varied, and this is effected by hingin g the arm E, supporting the post, to the block 6 by means of a bolt and nuts 6 6 which are employed in looking it in a given position.

01' course I do not confine myself to a tool having four pairs of rolls, as the principle of this invention may be employed with a tool having but two pairs, or with a tool having a larger number of pairs than four,the principle being to balance one roll of a pair by the other and each pair by another.

The advantages of the improved tool over that described in my said Letters Patent are these: The work can be done quicker and better, as two lines of rolls are used in lieu of one. The small rolls with narrow working-surfaces enable a suitable pressure to be exerted upon the work, and the uniformity of pressure to be maintained, and this feature is particularly desirable in the tools which operate upon the foot portion of the boot, as it enables them, throughout the rapid changes in conformation of surface, to as rapidly conform to" the surface, and at all times and in all positions to present their working-surfaces to the boot.

This tool is used in the same way as the tool described in my said patent is employedthat is, the boot-tree may be revolved. against the rolls, the rolls having a slight traversing movement lengthwise the axis of revolution;

. or the rolls may be revolved around the tree,

and either the rolls or the tree given a traversing movement in addition.

The use of heat effects the same results in working the leather that are described in the patent to me, No. 215,440, and it may be used to dry it, to temper it, or to dry in the finishing or filling composition, and it differs only in the method of applying it from without the boot-tree.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States--- 1. An improved leather smoothing and finishing tool, consisting of two or more pairs of rolls B, each pair having a common axis between them ataright angle to their axes, and every two pairs having a common axis parallel with the axes of each pair, substantially as and for the purpose described.

2. The combination of the arm A, the short shaft b, pivoted to the said arm, and the rolls B, arranged in pairs upon either side of said shaft upon axes parallel with said shaft, and arranged to have a swiveling movement on said shaft, substantially as described.

3. In combination with the supporting-arm A, two pairs of rolls having parallel axes and loosely attached to the end of said arm midway between each pair, substantially as described.

4. In boot-treeing mechanism, the combination of rolls, substantially as described, and a heating-pipe adapted to heat both. the rolls and the external surface of the boot in the treeing process, substantially as set forth.

5. In combination with a revolving boottree, the smoothing and finishing rolls adapted to be externally heated by gas-jets or hot air in the manner described, substantially as and for the purposes set forth.

6. The combination of the smoothing and finishing rolls B of a boot-treeing machine with means, substantially as described, for heating them during the treeing operation.

7. The combination of a boot-tree with the smoothing and finishing rolls B and a spreading device for automatically distributing, the filling and finishing composition upon the surface of the boot during the treeing operation, substantially as described.

8. The combination of the post E, supporting the toolcarrying arm A, the arm a, and the supporting-block e, the said aim being hinged to the supporting-block, substantially as and for the purposes described.

Witnesses: J. E. CRISP.

F. F. RAYMOND, 2d, M. W. SAWYER. 

